Basement deformation joint structure

The invention discloses a basement deformation joint structure, and belongs to the technical field of basement structures. The deformation joint structure comprises two adjacent reinforced concrete members (1); a deformation joint (2) is formed between the two reinforced concrete members (1); a reinforced concrete base plate (6) is arranged at the lower part of the deformation joint (2); the two side edges of the reinforced concrete base plate (6) correspond to the reinforced concrete members (1) on the two sides, and the two side edges of the reinforced concrete base plate (6) and the reinforced concrete members (1) are connected into a whole; a plurality of reinforced concrete cover plates (4) are sequentially arranged at the upper part of the deformation joint (2); and the bottom surface of each reinforced concrete cover plate (4) is supported by bridging pieces (3) which extends outwards from the reinforced concrete members (1) on the two sides. The deformation joint structure hasthe advantages that the d